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210.149.87.235 has a very high threat confidence level of 94%, originating from Tsuzuki Ku, Japan, on the Internet Initiative Japan Inc. network (2497). It has been observed across 81 sessions targeting RDP, First observed on March 10, 2026, most recently active March 11, 2026.
Identifies RDP clients attempting authentication using Network Level Authentication (NLA) with the NTLM challenge-response protocol. This occurs during the CredSSP negotiation phase before a remote desktop session is established and indicates an active credential authentication attempt against the RDP service